Aluminium – Copper – Manganese

Hans Leo Lukas

Literature Data

The most well-investigated details of the constitution are the equilibria of the (Al) solid solution. The first papers [1927Kri, 1933Saw] assumed equilibrium between (Al), CuAl₂ and the most Al-rich binary Al-Mn phase, at that time assumed to be MnAl₄. [1938Pet] and [1939Han] detected a ternary phase which was verified by [1943Gue, 1944Ray] and [1947Day] and later papers. The liquidus surfaces after [1938Pet] and [1947Day] disagree, as [1947Day] found lower temperatures for the U type invariant equilibria than [1938Pet]. Although the most extensive constitutional investigation [1966Koe] accepted Petri's [1938Pet] results, a newer paper, [1979Bar], determined the distribution coefficients of Cu and Mn between liquid and (Al) by unidirectional solidification and stated the results to confirm the liqu...